MR-Guided Transcranial Focused Ultrasound
Fig. 6.1 The skull bone. A complex medium for transcranial ultrasonic propagation Sound speed within the skull bone ranges between 1500 m/s in the liquid phase of porous regions, and…
Fig. 6.1 The skull bone. A complex medium for transcranial ultrasonic propagation Sound speed within the skull bone ranges between 1500 m/s in the liquid phase of porous regions, and…
Methods Energy conduction Ablation volume Energy delivery Imaging guidance Ablation time (min) Ablation expense HIFU Heat cavitation Conformal ablation No tumor size limitation Transcutaneous No probe insertion Ultrasound MRI 30–120…
Fig. 7.1 Left—Curvilinear probe with orientation marker out of field of view. Right—Curvilinear probe with the orientation marker on the lateral side Fig. 7.2 Left—For the transverse plane, the marker…
Fig. 6.1 The patient sits on an exam table at a comfortable height for both patient and clinician. The ultrasound machine can be on the same side of the area…
Fig. 9.1 Approach to ultrasound examination of a young child. The examiner is positioned sitting on the stretcher on the same side as the ultrasound machine, so that the probe…
Fig. 4.1 Normal sonographic anatomy of the skin Glabrous Skin (i.e., Palms and Soles) Epidermis: bilaminar and thick bright hyperechoic layer due to more prominent keratin content. Dermis and Hypodermis…
Fig. 8.1 Ultrasound machine and examiner should be on the patient’s right side to allow for scanning with the right hand Ultrasound machine and setting. The eye is particularly vulnerable…
Fig. 10.1 Depiction of basic B-mode screens of a high frequency linear probe (left) and a curvilinear probe (right) Fig. 10.2 Examples of curvilinear (left) and high frequency linear (right)…